Discrete phased electromagnetic reflector based on two-state elements

摘要

An electromagnetic reflector for reflecting an electromagnetic signal is provided based on meta-surface phase control using photo-capacitive materials, varactors or other tuning means. The shape of the metamaterial unit cell enhances the resonance and phase shift. The reflector includes first and second cells having respective first and second phase states, along with a switch for selecting between the first and second cells.

主权项

1. An electromagnetic reflector for reflecting an electromagnetic signal based on phase, said reflector comprising:
a first cell tuned to a first phase state; a second cell tuned to a second phase state, and a switch for selecting between said first and second cell, wherein the reflector contains a plurality of super-cells, each super-cell contains a plurality of unit cells, and each unit cell contains one of metallic elements and dielectric elements that form an effective resonant circuit.